package cn.sytton.taffe.framework.exception;

import cn.sytton.taffe.framework.response.ResponseResult;
import lombok.extern.slf4j.Slf4j;
import org.springframework.security.authentication.BadCredentialsException;
import org.springframework.security.core.userdetails.UsernameNotFoundException;
import org.springframework.validation.FieldError;
import org.springframework.web.bind.MethodArgumentNotValidException;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RestControllerAdvice;

import javax.validation.ConstraintViolationException;
import javax.validation.ValidationException;

/**
 * 全局异常处理，捕获所有controller层service中抛出的异常
 *
 * @author skyrock
 */
@Slf4j
@RestControllerAdvice
public class GlobalExceptionHandler {

    @ExceptionHandler(value = BizException.class)
    public ResponseResult handleBizException(BizException e) {
        log.error(e.getMessage(), e);
        return ResponseResult.fail(e.getMessage());
    }

    @ExceptionHandler(value = Exception.class)
    public ResponseResult handleException(Exception e) {
        log.error(e.getMessage(), e);
        return ResponseResult.fail(e.getMessage());
    }

    @ExceptionHandler(value = {BadCredentialsException.class, UsernameNotFoundException.class})
    public ResponseResult handleBadCredentialsException(BadCredentialsException e) {
        log.error(e.getMessage(), e);
        return ResponseResult.fail(e.getMessage());
    }

    /**
     * 方法参数校验
     */
    @ExceptionHandler(MethodArgumentNotValidException.class)
    public ResponseResult handleMethodArgumentNotValidException(MethodArgumentNotValidException e) {
        log.error(e.getMessage(), e);
        FieldError fieldError = e.getBindingResult().getFieldError();
        return ResponseResult.fail((fieldError != null) ? fieldError.getDefaultMessage() : "请求参数校验错误");
    }

    /**
     * ValidationException
     */
    @ExceptionHandler(ValidationException.class)
    public ResponseResult handleValidationException(ValidationException e) {
        log.error(e.getMessage(), e);
        return ResponseResult.fail(e.getCause().getMessage());
    }

    /**
     * ConstraintViolationException
     */
    @ExceptionHandler(ConstraintViolationException.class)
    public ResponseResult handleConstraintViolationException(ConstraintViolationException e) {
        log.error(e.getMessage(), e);
        return ResponseResult.fail(e.getMessage());
    }

//    /**
//     * 权限校验异常
//     */
//    @ExceptionHandler(AccessDeniedException.class)
//    public AjaxResult handleAccessDeniedException(AccessDeniedException e, HttpServletRequest request)
//    {
//        String requestURI = request.getRequestURI();
//        log.error("请求地址'{}',权限校验失败'{}'", requestURI, e.getMessage());
//        return AjaxResult.error(HttpStatus.FORBIDDEN, "没有权限，请联系管理员授权");
//    }
//
//    /**
//     * 请求方式不支持
//     */
//    @ExceptionHandler(HttpRequestMethodNotSupportedException.class)
//    public AjaxResult handleHttpRequestMethodNotSupported(HttpRequestMethodNotSupportedException e,
//                                                          HttpServletRequest request)
//    {
//        String requestURI = request.getRequestURI();
//        log.error("请求地址'{}',不支持'{}'请求", requestURI, e.getMethod());
//        return AjaxResult.error(e.getMessage());
//    }
//
//    /**
//     * 业务异常
//     */
//    @ExceptionHandler(ServiceException.class)
//    public AjaxResult handleServiceException(ServiceException e, HttpServletRequest request)
//    {
//        log.error(e.getMessage(), e);
//        Integer code = e.getCode();
//        return StringUtils.isNotNull(code) ? AjaxResult.error(code, e.getMessage()) : AjaxResult.error(e.getMessage());
//    }
//
    /**
     * 拦截未知的运行时异常
     */
//    @ExceptionHandler(RuntimeException.class)
//    public AjaxResult handleRuntimeException(RuntimeException e, HttpServletRequest request)
//    {
//        String requestURI = request.getRequestURI();
//        log.error("请求地址'{}',发生未知异常.", requestURI, e);
//        return AjaxResult.error(e.getMessage());
//    }
//
//    /**
//     * 系统异常
//     */
//    @ExceptionHandler(Exception.class)
//    public AjaxResult handleException(Exception e, HttpServletRequest request)
//    {
//        String requestURI = request.getRequestURI();
//        log.error("请求地址'{}',发生系统异常.", requestURI, e);
//        return AjaxResult.error(e.getMessage());
//    }
//
//    /**
//     * 自定义验证异常
//     */
//    @ExceptionHandler(BindException.class)
//    public AjaxResult handleBindException(BindException e)
//    {
//        log.error(e.getMessage(), e);
//        String message = e.getAllErrors().get(0).getDefaultMessage();
//        return AjaxResult.error(message);
//    }
//
//    /**
//     * 演示模式异常
//     */
//    @ExceptionHandler(DemoModeException.class)
//    public AjaxResult handleDemoModeException(DemoModeException e)
//    {
//        return AjaxResult.error("演示模式，不允许操作");
//    }
}
